juno: upload all the device tree blobs

It's assumed we have a Juno R0 board. It isn't always the case. If someone
has another revision, he'll prefer to use the right device tree for his
board.

Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org>
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>